The balance was interesting for this game, definitely had a lot of stalemates and kinda not-great feeling things (e.g. Shadow Testmen are cool in theory but their defence dice feels unfair in this kind of game). The random rolling mechanics are actually addressed quite well here, ESPECIALLY with the minion system (which I explored greatly in the game, even though I really don't think that was the purpose of having them), as when you are in a tough fight and you manage to summon 7 minions in a row it feels AMAZING. Pure TTRPG moment, which a lot of games that involve randomness kinda struggle to bring that rush.
Hope you make more/make something bigger out of this! Maybe to give the Healer some depth, having them target an enemy could reduce their next attack/defence dice by a set number the Healer rolls. Would love to see more!!